High-strength split one-piece machined 2-gear 14/19T pinion gear module from tough 7075 T6 aluminum and specifically difficult coated for superior energy, light-weight, and high durability. Developed on a certain gear device, all pinions work ultra-precise enamel shaping and ultra-true operating for vibration-free procedure. Fine inside threading allows effortless installation. Each pinion is okay etched utilizing the enamel volume for fast & effortless recognition.